EP4127421C0 - Two-stroke internal combustion engine - Google Patents

Two-stroke internal combustion engine

Info

Publication number
EP4127421C0
EP4127421C0 EP21717313.7A EP21717313A EP4127421C0 EP 4127421 C0 EP4127421 C0 EP 4127421C0 EP 21717313 A EP21717313 A EP 21717313A EP 4127421 C0 EP4127421 C0 EP 4127421C0
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
stroke internal
stroke
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21717313.7A
Other languages
German (de)
French (fr)
Other versions
EP4127421A1 (en
EP4127421B1 (en
Inventor
Marek Zak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4127421A1 publication Critical patent/EP4127421A1/en
Application granted granted Critical
Publication of EP4127421C0 publication Critical patent/EP4127421C0/en
Publication of EP4127421B1 publication Critical patent/EP4127421B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/12—Rotary or oscillatory slide valve-gear or valve arrangements specially for two-stroke engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/06—Rotary or oscillatory slide valve-gear or valve arrangements with disc type valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • F02B25/06—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/04—Engines with prolonged expansion in main cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2313/00—Rotary valve drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP21717313.7A 2020-04-01 2021-03-23 Two-stroke internal combustion engine Active EP4127421B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2020184A CZ308792B6 (en) 2020-04-01 2020-04-01 Two-stroke combustion engine
PCT/CZ2021/050035 WO2021197518A1 (en) 2020-04-01 2021-03-23 Two-stroke internal combustion engine

Publications (3)

Publication Number Publication Date
EP4127421A1 EP4127421A1 (en) 2023-02-08
EP4127421C0 true EP4127421C0 (en) 2023-12-13
EP4127421B1 EP4127421B1 (en) 2023-12-13

Family

ID=75438538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21717313.7A Active EP4127421B1 (en) 2020-04-01 2021-03-23 Two-stroke internal combustion engine

Country Status (4)

Country Link
US (1) US11828208B2 (en)
EP (1) EP4127421B1 (en)
CZ (1) CZ308792B6 (en)
WO (1) WO2021197518A1 (en)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535657A (en) * 1917-05-08 1925-04-28 Orville H Ensign Method of and means for producing power from fuel
GB284649A (en) 1927-02-02 1928-08-02 Jean Roger Goiot
US2082078A (en) * 1933-07-15 1937-06-01 Carl C Ottoson Internal combustion engine
DE865237C (en) 1944-03-21 1953-02-12 Otto Sierenberg Control for a two-stroke internal combustion engine with direct current flushing
US2525271A (en) * 1946-06-28 1950-10-10 Quint George Internal-combustion engine with complete expansion
US2720872A (en) * 1953-01-30 1955-10-18 Yokoi Motoaki Two cycle internal combustion engines
IT1239937B (en) 1990-04-03 1993-11-23 Gianfranco Bossu INTERNAL COMBUSTION ENGINE WITH EXHAUST LIGHT ON THE CYLINDER
GB9217345D0 (en) 1992-08-14 1992-09-30 Lotus Car Four stroke internal combustion engine
US5257601A (en) * 1993-02-01 1993-11-02 Coffin David F Adjustable rotary valve assembly for a combustion engine
US5331927A (en) * 1993-10-07 1994-07-26 General Motors Corporation Exhaust port insert
JP3391413B2 (en) * 1993-11-27 2003-03-31 本田技研工業株式会社 Exhaust control valve for two-stroke engine
US20030230258A1 (en) * 2002-06-12 2003-12-18 Niemiz Hector Alvaro Javier Two-stroke engines exhaust and scavenge control
US7093570B2 (en) * 2003-12-31 2006-08-22 Nagesh S Mavinahally Stratified scavenged two-stroke engine
BR112012020479B1 (en) 2010-02-17 2021-06-01 Primavis S.R.L TWO-STROKE ENGINE WITH LOW CONSUMPTION AND LOW EMISSIONS
WO2012161800A2 (en) * 2011-02-24 2012-11-29 University Of Idaho Rotary synchronous charge trapping
DE102012020893B4 (en) * 2012-10-24 2018-07-12 Peter Kreuter A method for operating a supercharged, longitudinally-flushed two-stroke internal combustion engine and charged, longitudinally-flushed two-stroke internal combustion engine and recuperator
GB2557898B (en) * 2016-10-17 2019-08-28 Perkins Engines Co Ltd Engine assembly for a combustion engine

Also Published As

Publication number Publication date
EP4127421A1 (en) 2023-02-08
CZ2020184A3 (en) 2021-05-19
US11828208B2 (en) 2023-11-28
WO2021197518A1 (en) 2021-10-07
US20230143774A1 (en) 2023-05-11
EP4127421B1 (en) 2023-12-13
CZ308792B6 (en) 2021-05-19

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